About this item:

AC Input: 110-240V, DC Output: 3V, 4.5V, 5V, 6V, 7.5V, 9V, 12V, 12W. Compatible 12 volt 1a /1000mA, 5v 2.5a / 2500mA, 0.75a / 750mA, 1.5a / 1500mA
Various Voltage Options - From 3v to 12v, wide volt range, perfectly meet a variety of indoor electronics. An ideal Versatile AC adaptor to keep
Multiple DC Tips - A set of popular dimension dc connectors. Works with lots of consumer electronics, such as router, led strips, lamp, webcams, security cameras, HDMI switchers, GPS, kids toys, Usb hub, tablets, electronic gizmos, DIY circuits and more
Power Polarity - Central Positive (+), Polarity could not be reversed, please make sure your device be with the same polarity requirements

Specifications:

Power12W
Output Voltage: 3v/4.5v/5v/6v/7.5v/9v/12v adjustable
Cable Length: 1.2m/3.9ft
DC Adapter Tip Dimensions
Tip 1: 5.5x2.5mm
Tip 2: 5.5x2.1mm
Tip 3: 3.5x1.35mm
Tip 4: 3.0x1.1mm
Tip 5: 2.5x0.7mm
Tip 6: 4.0x1.7mm

Package include: 

1 x Universal Power Supply
6 x Tips
1 x Voltage Pick Tool